



'''simple docstring'''

from collections.abc import Generator
from math import sin






def 				a  (     UpperCamelCase_    :    bytes			)       ->	bytes:
		if len(UpperCamelCase_			) != 32:
				raise ValueError('Input must be of length 32'			)

		snake_case__	     =b''
		for i in [3, 2, 1, 0]:
				little_endian += string_aa[8 * i : 8 * i + 8]
		return little_endian






def 				a  (     UpperCamelCase_    :    int			)       ->	bytes:
		if i < 0:
				raise ValueError('Input must be non-negative'			)

		snake_case__	     =format(UpperCamelCase_      ,					'08x'			)[-8:]
		snake_case__	     =b''
		for i in [3, 2, 1, 0]:
				little_endian_hex += hex_rep[2 * i : 2 * i + 2].encode('utf-8'			)
		return little_endian_hex






def 				a  (     UpperCamelCase_    :    bytes			)       ->	bytes:
		snake_case__	     =b''
		for char in message:
				bit_string += format(UpperCamelCase_      ,					'08b'			).encode('utf-8'			)
		snake_case__	     =format(len(UpperCamelCase_			)      ,					'064b'			).encode('utf-8'			)

		# Pad bit_string to a multiple of 512 chars
		bit_string += b"1"
		while len(UpperCamelCase_			) % 512 != 448:
				bit_string += b"0"
		bit_string += to_little_endian(start_len[32:]			) + to_little_endian(start_len[:32]			)

		return bit_string






def 				a  (     UpperCamelCase_    :    bytes			)       ->	Generator[list[int], None, None]:
		if len(UpperCamelCase_			) % 512 != 0:
				raise ValueError('Input must have length that\'s a multiple of 512'			)

		for pos in range(0      ,					len(UpperCamelCase_			)      ,					512			):
				snake_case__	     =bit_string[pos : pos + 512]
				snake_case__	     =[]
				for i in range(0      ,					512      ,					32			):
						block_words.append(int(to_little_endian(block[i : i + 32]			)      ,					2			)			)
				yield block_words






def 				a  (     UpperCamelCase_    :    int			)       ->	int:
		if i < 0:
				raise ValueError('Input must be non-negative'			)

		snake_case__	     =format(UpperCamelCase_      ,					'032b'			)
		snake_case__	     =''
		for c in i_str:
				new_str += "1" if c == "0" else "0"
		return int(UpperCamelCase_      ,					2			)






def 				a  (     UpperCamelCase_    :    int      ,					UpperCamelCase_    :    int			)       ->	int:
		return (a + b) % 2**32






def 				a  (     UpperCamelCase_    :    int      ,					UpperCamelCase_    :    int			)       ->	int:
		if i < 0:
				raise ValueError('Input must be non-negative'			)
		if shift < 0:
				raise ValueError('Shift must be non-negative'			)
		return ((i << shift) ^ (i >> (32 - shift))) % 2**32






def 				a  (     UpperCamelCase_    :    bytes			)       ->	bytes:
		snake_case__	     =preprocess(UpperCamelCase_			)

		snake_case__	     =[int(2**32 * abs(sin(i + 1			)			)			) for i in range(64			)]

		# Starting states
		snake_case__	     =0X67452301
		snake_case__	     =0Xefcdab89
		snake_case__	     =0X98badcfe
		snake_case__	     =0X10325476

		snake_case__	     =[
		    7,
		    12,
		    17,
		    22,
		    7,
		    12,
		    17,
		    22,
		    7,
		    12,
		    17,
		    22,
		    7,
		    12,
		    17,
		    22,
		    5,
		    9,
		    14,
		    20,
		    5,
		    9,
		    14,
		    20,
		    5,
		    9,
		    14,
		    20,
		    5,
		    9,
		    14,
		    20,
		    4,
		    11,
		    16,
		    23,
		    4,
		    11,
		    16,
		    23,
		    4,
		    11,
		    16,
		    23,
		    4,
		    11,
		    16,
		    23,
		    6,
		    10,
		    15,
		    21,
		    6,
		    10,
		    15,
		    21,
		    6,
		    10,
		    15,
		    21,
		    6,
		    10,
		    15,
		    21,
		]

		# Process bit string in chunks, each with 16 32-char words
		for block_words in get_block_words(UpperCamelCase_			):
				snake_case__	     =aa
				snake_case__	     =ba
				snake_case__	     =ca
				snake_case__	     =da

				# Hash current chunk
				for i in range(64			):
						if i <= 15:
								# f = (b & c) | (not_32(b) & d)     # Alternate definition for f
								snake_case__	     =d ^ (b & (c ^ d))
								snake_case__	     =i
						elif i <= 31:
								# f = (d & b) | (not_32(d) & c)     # Alternate definition for f
								snake_case__	     =c ^ (d & (b ^ c))
								snake_case__	     =(5 * i + 1) % 16
						elif i <= 47:
								snake_case__	     =b ^ c ^ d
								snake_case__	     =(3 * i + 5) % 16
						else:
								snake_case__	     =c ^ (b | not_aa(UpperCamelCase_			))
								snake_case__	     =(7 * i) % 16
						snake_case__	     =(f + a + added_consts[i] + block_words[g]) % 2**32
						snake_case__	     =d
						snake_case__	     =c
						snake_case__	     =b
						snake_case__	     =sum_aa(UpperCamelCase_      ,					left_rotate_aa(UpperCamelCase_      ,					shift_amounts[i]			)			)

				# Add hashed chunk to running total
				snake_case__	     =sum_aa(UpperCamelCase_      ,					UpperCamelCase_			)
				snake_case__	     =sum_aa(UpperCamelCase_      ,					UpperCamelCase_			)
				snake_case__	     =sum_aa(UpperCamelCase_      ,					UpperCamelCase_			)
				snake_case__	     =sum_aa(UpperCamelCase_      ,					UpperCamelCase_			)

		snake_case__	     =reformat_hex(UpperCamelCase_			) + reformat_hex(UpperCamelCase_			) + reformat_hex(UpperCamelCase_			) + reformat_hex(UpperCamelCase_			)
		return digest


if __name__ == "__main__":
			import doctest

			doctest.testmod()









'''simple docstring'''

from typing import TYPE_CHECKING

from ....utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available, is_vision_available


SCREAMING_SNAKE_CASE__     :						Tuple	=  {'''configuration_van''': ['''VAN_PRETRAINED_CONFIG_ARCHIVE_MAP''', '''VanConfig''']}


try:
			if not is_torch_available():
						raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
			pass
else:
			SCREAMING_SNAKE_CASE__     :						List[str]	=  [
			    '''VAN_PRETRAINED_MODEL_ARCHIVE_LIST''',
			    '''VanForImageClassification''',
			    '''VanModel''',
			    '''VanPreTrainedModel''',
			]

if TYPE_CHECKING:
			from .configuration_van import VAN_PRETRAINED_CONFIG_ARCHIVE_MAP, VanConfig

			try:
						if not is_torch_available():
									raise OptionalDependencyNotAvailable()
			except OptionalDependencyNotAvailable:
						pass
			else:
						from .modeling_van import (
						    VAN_PRETRAINED_MODEL_ARCHIVE_LIST,
						    VanForImageClassification,
						    VanModel,
						    VanPreTrainedModel,
						)

else:
			import sys

			SCREAMING_SNAKE_CASE__     :						Dict	=  _LazyModule(__name__, globals()['''__file__'''], _import_structure)




